CVE-2026-18445

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreHIGH confidence

Score 6.6 from GitHub Security Advisory published 2026-08-25. a secondary CVSS source baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.6Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

There is an integer overflow vulnerability resulting in an out-of-bounds write recently discovered in NI LabVIEW.  This may result in information disclosure or arbitrary code execution.  Successful exploitation requires an attacker to get a user to open a specially crafted VI file.  This vulnerability affects NI LabVIEW 2026 Q3 and prior versions.

CVSS v3
6.6
EG Score
6.6(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity66% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 25, 2026
No patch confirmed yet.
generic

Integer Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEW - NI

https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/integer-overflow-vulnerability-resulting-in-an-out-of-bounds-write-in-ni-labview.html

Vendor Advisories for CVE-2026-18445(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 21:04 UTCEG score recompute
  3. 2026-08-29 21:04 UTCGHSA enrichment
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-28 21:25 UTCGHSA enrichment
  6. 2026-08-28 17:02 UTCGHSA enrichment
  7. 2026-08-27 17:20 UTCEG score recompute
  8. 2026-08-27 17:20 UTCGHSA enrichment
  9. 2026-08-27 17:14 UTCEG score recompute
  10. 2026-08-27 17:14 UTCGHSA enrichment
  11. 2026-08-27 15:40 UTCEG score recompute
  12. 2026-08-27 15:40 UTCGHSA enrichment
  13. 2026-08-27 14:25 UTCEPSS rescore
  14. 2026-08-26 15:59 UTCEG score recompute
  15. 2026-08-26 15:59 UTCGHSA enrichment
  16. 2026-08-26 14:46 UTCEPSS rescore
  17. 2026-08-26 04:11 UTCEG score recompute
  18. 2026-08-26 04:10 UTCGHSA enrichment
  19. 2026-08-25 20:23 UTCEG score recompute
  20. 2026-08-25 20:23 UTCGHSA enrichment
  21. 2026-08-25 19:51 UTCEG score recompute
  22. 2026-08-25 19:50 UTCGHSA enrichment
  23. 2026-08-25 17:25 UTCEG score recompute
  24. 2026-08-25 16:25 UTCEG score recompute
  25. 2026-08-25 16:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-18445?
CVE-2026-18445 is a medium vulnerability published on August 25, 2026. There is an integer overflow vulnerability resulting in an out-of-bounds write recently discovered in NI LabVIEW. This may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted VI file. This vulnerability…
When was CVE-2026-18445 disclosed?
CVE-2026-18445 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18445 actively exploited?
CVE-2026-18445 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-18445?
CVE-2026-18445 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2026-18445?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18445, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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